The best estimate would be 121/15 = 8.1
Since eleven is odd, there must be a centra element, which in this case is the sixth. So, we can write 11 consecutive integers as

Since the arithmetic mean is the sum of the values, divided by how many they are, we have

So, the mean of 11 consecutive integers is the 6th integer.
Answer:
5/12
Step-by-step explanation:
Yes that is true, all opposite sides would be parallel, and all the corners are 90 degrees, then yes it is true